VoIP & PBX Systems
I provide remote support for VoIP and PBX systems, helping businesses configure, troubleshoot, and optimize 3CX, SIP trunks, call routing, IVR, DTMF/RTP, NAT, and multi-site voice deployments.
3CX Support
Installation, configuration, troubleshooting, and optimization of 3CX systems, including extensions, trunks, inbound/outbound rules, call queues, and system updates.
SIP Trunk Configuration
Configuration and troubleshooting of SIP trunks, provider settings, registration issues, caller ID, inbound routing, outbound routes, and trunk failover.
Call Routing & IVR Setup
Design and configuration of call flows, IVR menus, ring groups, queues, forwarding rules, business hours, and routing logic based on business needs.
DTMF & RTP Troubleshooting
Diagnosis of DTMF, RTP, one-way audio, no audio, codec, firewall, NAT, and SIP signaling issues affecting call quality and call control.
NAT & Firewall Issues
Troubleshooting VoIP-related NAT, port forwarding, SIP ALG, firewall rules, RTP port ranges, and connectivity issues between PBX, provider, and remote phones.
Multi-Site PBX Deployment
Planning and support for multi-location PBX deployments, including remote extensions, branch connectivity, failover, numbering plans, and centralized call management.